Cançado Rodrigo Hermont, Janson Guilherme, Tompson Bryan, Alvares José Carlos de Castro, Valarelli Fabrício Pinelli, Freitas Karina Maria Salvatore
Department of Restorative Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Department of Orthodontics, Uningá University Center, Maringá, Paraná, Brazil.
Eur J Dent. 2021 Feb;15(1):39-46. doi: 10.1055/s-0040-1715789. Epub 2020 Aug 31.
The aim of this study was to evaluate dentoskeletal changes in the treatment of Class II malocclusion with the Herbst Cantilever Bite Jumper (CBJ) appliance, associated with multibracket appliances after the growth peak, at pretreatment.
A sample of 37 individuals was divided into two groups: the experimental group comprised 16 patients treated consecutively for a mean period of 2.52 years with the Herbst CBJ appliance associated with multibracket appliances. A total of 21 subjects (10 males and 11 females) with Class II malocclusion and mean age at T1 of 16.08 years were followed for a mean period of 2.12 years composed the control group. Comparisons between the two groups were performed using initial and final lateral cephalograms. Comparisons between experimental and control groups at pretreatment and of the treatment changes were performed by Mann-Whitney or independent -tests.
Experimental group exhibited a significantly greater labial inclination of the mandibular incisors in comparison to the control group. Additionally, significantly greater corrections in overbite, overjet, and molar relationship were observed in the experimental than in the control groups.
The effects of the Herbst CBJ appliance, associated with fixed appliances after the growth peak in Class II malocclusion treatment are correction in molar relationship toward a Class I relationship, decrease of the overjet, decrease of the overbite, and mandibular incisors labial inclination.
本研究旨在评估在生长高峰期后，使用赫布斯特悬臂咬合跳跃器（CBJ）矫治器联合多托槽矫治器治疗安氏II类错牙合畸形时，治疗前牙颌面的变化情况。
选取37名个体作为样本，分为两组：实验组由16例患者组成，他们连续使用赫布斯特CBJ矫治器联合多托槽矫治器治疗，平均治疗时间为2.52年。对照组由21名安氏II类错牙合畸形患者（10名男性和11名女性）组成，T1时平均年龄为16.08岁，随访平均时间为2.12年。两组之间的比较采用初始和最终的头颅侧位片。实验组与对照组在治疗前以及治疗变化的比较采用曼-惠特尼检验或独立样本t检验。
与对照组相比，实验组下颌切牙唇倾度明显更大。此外，实验组在覆牙合、覆盖和磨牙关系方面的矫正程度明显大于对照组。
在安氏II类错牙合畸形治疗中，生长高峰期后使用赫布斯特CBJ矫治器联合固定矫治器的效果包括磨牙关系矫正至I类关系、覆盖减小、覆牙合减小以及下颌切牙唇倾。
